# The Roman numerals system was an ancient and popular form of writing numbers.

Roman numerals

The Roman numerals system was an ancient and popular form of writing numbers. today it is used in clocks to indicate time. All Roman numerals are written by 7 basic symbols.

Numbers in the roman system are written by combinations of letters from the Latin alphabet. Roman system used a different system and have not any place value. they had different rules for writing numbers using seven letters and they had no numeral for 0.

 Roman Numeral I V X L C D M Value 1 5 10 50 100 500 1000

### How do you write Roman numbers?

Rule 1

(1), X (10), C (100), and M (1000) are special numeral, only they can be placed together and they can be subtracted. I, X, C, and M can be repeated up to three-time and the value of the repeated numerals gets added.

Example :

II   =  1 + 1 = 2

III  = 1 + 1 + 1  =  3,

XXX   = 10 + 10 +10  =  30,

CCC    = 100 + 100 + 100 = 300,

MMM  = 1000  + 1000  + 1000  =  3000.

Rule 2 :

The smaller numeral gets added to the greater numbers on the left side.

Example

VI  =  5 + 1 = 6,

VII  =  5 + 1 + 1 = 7,

VIII =  5 + 1 + 1 + 1 =  8,

XII   = 10 + 1 + 1 = 12,

XXXI = 10 + 10 + 10 + 1 = 31,

LX  = 50  + 10 = 60.

Rule 3 :

The smaller numeral gets subtracted from the greater numeral on its right side.

Example -

IX  = 10  - 1 = 9,

XL =  50 - 10  = 40,

XC = 100  - 10  =  90.

Rule 4

A smaller numeral between 2 greater numerals gets substrates from the numeral on its right side.

Example - XXIV  = 10 + 10 +  5 - 1 = 24.

90 is XC correct, LXXXX wrong because repeated up to three-time

The symbols V, L, and D are not repeated

10 is written as X, not VV

### List of Roman numerals 1 to 100:

#### Roman Numerals 1 to 10

 1 2 3 4 5 6 7 8 9 10 I II III IV V VI VII VIII IX X

#### Roman Numerals 11 to 20

 11 12 13 14 15 16 17 18 19 20 XI XII XIII XIV XV XVI XVII XVIII XIX XX

#### Roman Numerals 21 to 30

 21 22 23 24 25 26 27 28 29 30 XXI XXII XXIII XXIV XXV XXVI XXVII XXVIII XXIX XXX

#### Roman Numerals  31 to 40

 31 32 33 34 35 36 37 38 39 40 XXXI XXXII XXXIII XXXIV XXXV XXXVI XXXVII XXXVIII XXXIX XL

#### Roman Numerals  41 to 50

 41 42 43 44 45 46 47 48 49 50 XLI XLII XLIII XLIV XLV XLVI XLVII XLVIII XLIX L

#### Roman Numerals  51 to 60

 51 52 53 54 55 56 57 58 59 60 LI LII LIII LIV LV LVI LVII LVIII LIX LX

#### Numberals 61 to 70

 61 62 63 64 65 66 67 68 69 70 LXI LXII LXIII LXIV LXV LXVI LXVII LXVIII LXIX LXX

#### Roman Numerals  71 to 80

 71 72 73 74 75 76 77 78 79 80 LXXI LXXII LXXIII LXXIV LXXV LXXVI LXXVII LXXVIII LXXIX LXXX

#### Roman Numerals   81 to 90

 81 82 83 84 85 86 87 88 89 90 LXXXI LXXXII LXXXIII LXXXIV LXXXV LXXXVI LXXXVII LXXXIII LXXXIX XC

#### Roman Numerals   91 to 100

 91 92 93 94 95 96 97 98 99 100 XCI XCII XCIII XCIV XCV XCVI XCVII XCVIII XCIX XC

#### Question - Why did we stop using Roman numerals?

Answer - the Roman numeral system is inconvenient and long calculation. therefore it has been replaced by the easier Indo-Arabic numeral ( that is 0, 1, 2, 3, 4, 5, .6, 7, 8, 9.).

Write Roman numerals:

1.  VI   =     5  +  1  =  6

2.   IX   =   10  -   1  =  9

3.  XV   =   10 +   5  = 15

4.XVII  =    10 +  7 = 17

5.XLIV =     40 +  4  = 44